diff --git a/.readthedocs.yaml b/.readthedocs.yaml
new file mode 100644
index 0000000..faed046
--- /dev/null
+++ b/.readthedocs.yaml
@@ -0,0 +1,9 @@
+version: 2
+
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
+sphinx:
+  configuration: docs/conf.py
diff --git a/CHANGELOG b/CHANGELOG
index 0d985f8..b810fa4 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,9 @@
+0.9.1 (Aug 12, 2023)
+--------------------
+
+* Update Radon pinned dependency.
+* Replace regular YAML loader with safe one: #46
+
 0.9.0 (Feb 24, 2022)
 --------------------
 
diff --git a/requirements.txt b/requirements.txt
index 56e1395..21f3513 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-radon>=4,<6
+radon>=4,<7
 requests>=2.0,<3.0
 PyYAML>=4.2b1,<7.0
diff --git a/xenon/__init__.py b/xenon/__init__.py
index c509e25..a33631c 100644
--- a/xenon/__init__.py
+++ b/xenon/__init__.py
@@ -2,7 +2,7 @@
 The latter is the entry point for the command line program.
 '''
 
-__version__ = '0.9.0'
+__version__ = '0.9.1'
 
 import os
 import sys
@@ -55,7 +55,7 @@ def parse_args():
         setattr(args, attr, val.upper())
     try:
         with open(args.config, 'r') as f:
-            yml = yaml.load(f)
+            yml = yaml.safe_load(f)
     except (getattr(__builtins__, 'FileNotFoundError', IOError),
             yaml.YAMLError):
         yml = {}